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CA3972 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, hole_diameter: 0.289 INCHES MINIMUM AND 0.296 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, aperture_diameter: 4.530 INCHES NOMINAL IN, gage_ring_thickness: 0.030 INCHES NOMINAL IN, outside_corner_radius: 0.400 INCHES NOMINAL IN, cross-sectional_thickness: 0.070 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-854-0613, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
CA3972
NSN: 5330-00-854-0613
FSC: 5330
CAGE: 95272 — STILLMAN SEAL CORPORATION DIV STILLMAN SEAL CORPERATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
hole_diameter0.289 INCHES MINIMUM AND 0.296 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
aperture_diameter4.530 INCHES NOMINAL IN
gage_ring_thickness0.030 INCHES NOMINAL IN
outside_corner_radius0.400 INCHES NOMINAL IN
cross-sectional_thickness0.070 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL AND SYNTHETIC RUBBER
material_document_and_classificationQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-854-0613
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CA3972 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL THICKNESS: 0.070 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 0.400 INCHES NOMINAL IN
•
APERTURE DIAMETER: 4.530 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.289 INCHES MINIMUM AND 0.296 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
•
MATERIAL: ALUMINUM ALLOY 6061 OVERALL
•
GAGE RING THICKNESS: 0.030 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: METAL AND SYNTHETIC RUBBER
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL THICKNESS0.070 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.400 INCHES NOMINAL IN
APERTURE DIAMETER4.530 INCHES NOMINAL IN
HOLE DIAMETER0.289 INCHES MINIMUM AND 0.296 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
MATERIALALUMINUM ALLOY 6061 OVERALL
GAGE RING THICKNESS0.030 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEMETAL AND SYNTHETIC RUBBER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
GE5992-1GInterchangeable
interchangeable cross-reference
interchangeable
WS896/2-04AInterchangeable
interchangeable cross-reference
interchangeable
3-30ACLASS2DESIGNAInterchangeable
interchangeable cross-reference
interchangeable
40168-3Interchangeable
interchangeable cross-reference
interchangeable
712-0036-003Interchangeable
interchangeable cross-reference
interchangeable
40168Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CA3972?
CA3972 is a GASKET.
What parts can replace CA3972?
There are 13 known substitutes for CA3972: GE5992-1G, WS896/2-04A, 3-30ACLASS2DESIGNA and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CA3972?
CA3972 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-854-0613. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026